Cheapest return flights from Houston to Istanbul in August from 690€

AirHint found the following cheapest return flights from Houston (IAH) to Istanbul (IST) in August 2026 (see full year).

Return flights

30 Aug - 22 Sep Delta
30 Aug - 24 Sep Delta
15 Aug - 26 Aug KLM
01 Aug - 12 Aug KLM
30 Aug - 22 Sep Turkish Airlines direct
30 Aug - 24 Sep Turkish Airlines direct
15 Aug - 26 Aug Turkish Airlines direct
01 Aug - 12 Aug Turkish Airlines direct

Also check the deals for one-way flights from Houston to Istanbul in August.

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